1. A range card is a picture of the ground and prominent landmarks which you can see from your location. It is used to engage likely targets quicker, easier and more accurately
2. Targets are registered by calculating the range and the angle between the target and the zero line. Ensure the zero line is easily distinguishable both day and night. A summary of targets can also be helpful.
Include: Ref (A), Zero line (ie, Red Barn), Target (IE, bridge), Grid, Range, and Bearing.
it may also be helpful to include: Point from which made out (ie, left of 3 section's trench), Method of obtaining range (ie, judged by eye, checked by map), Made out by (IE, Cpl Bloggins) and date.